Officials are still trying to figure out how best to implement Massachusetts’ new law decriminalizing the possession of less than an ounce of marijuana. Several stipulations in the measure — passed by voter referendum last November — remain unclear. In the meantime, a number of state agencies are offering suggestions to law enforcement, local leaders and school officials. WFCR’s Susan Kaplan spoke with Kevin Burke — Massachusetts’ Secretary of Public Safety — to get that agency’s take on Question Two.